This Hopalong Cassidy western finds Hoppy (William Boyd), Lucky (Russell Hayden) and California (Andy Clyde) trying to save Minna Gombell's wagon-freighting line. Bad guys Morris Ankrum and Trevor Bardette (five points to anyone who can tell these mustachioed miscreants apart) plan to sabotage Ankrum's operation so they can take over the franchise. The climax is a rousing wagon chase, which came in handy as stock footage in later years. Ingenue Georgia Hawkins attracted warm praise from reviewers, but she disappeared from films shortly afterward. Co-written by Johnston McCulley of Zorro fame, Doomed Caravan was the 32nd "Hopalong Cassidy" entry.